I have just purchased a gas airplane with the DLE 30 all set up to fly RTF... The opto kill switch is not marked with a brand name... I can not get the red light to come on that indicates power to the EI.... This is a brand new and never flown or run setup... My main question is: As I am using the #6 slot on my receiver for the opto connection What should I do next with the transmitter to activate the Opto/EI... get the red light to glow? Futaba 9C transmitter... This airplane has two batteries... one for Ignition and one for the airplane... two switches....